I have a flexi task with multiple outcomes (Approve, Reject and Request Review). Is there any way that in case I selected Request Review, to keep the action with me and send it at the same time to multiple users for review.
You could architect your workflow to add another task (on the Request Review branch) and assign it to you and the desired reviewers. This would allow you and the reviewers to provide the necessary feedback to the task.
If you are looking to simply send them a notification and review something, I would add a notification action (on the Request Review branch) and send them whatever needs reviewed. If their review results in a change in your outcome, you use a state machine to move to another branch or repeat the same branch.
Hope this helps!